package com.infoer.util;

import java.util.Date;
import java.util.Properties;
import javax.mail.Address;
import javax.mail.Authenticator;
import javax.mail.Message;
import javax.mail.PasswordAuthentication;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;

/**
 * 發送普通郵件，接受普通郵件 發送帶有附件的郵件，接收帶有附件的郵件 發送html形式的郵件，接受html形式的郵件 發送帶有圖片的郵件等做了一個總結。
 */
public class sendmail {
 private String host = "smtp.163.com";

 private String username = "myshiyh";

 private String password = "123456";

 private String mail_head_name = "this is head of this mail";

 private String mail_head_value = "this is head of this mail";

 private String mail_to = "myshiyh@126.com";

 private String mail_from = "myshiyh@163.com";

 private String mail_subject = "this is the subject of this test mail";

 private String mail_body = "this is the mail_body of this test mail";

 private String personalName = "我的郵件";

 public sendmail() {
 }

 /**
  * 此段代碼用來發送普通電子郵件
  */
 public void send() throws SendMailException {
  try {
   Properties props = new Properties(); // 獲取系統環境
   Authenticator auth = new Email_Autherticator(); // 進行郵件服務器用戶認證
            props.put("mail.smtp.host", host);
   props.put("mail.smtp.auth", "true");
   Session session = Session.getDefaultInstance(props, auth);
   // 設置session,和郵件服務器進行通訊。
   MimeMessage message = new MimeMessage(session);
   message.setContent("Hello", "text/plain"); // 設置郵件格式
   message.setSubject(mail_subject); // 設置郵件主題
   message.setText(mail_body); // 設置郵件正文
   message.setHeader(mail_head_name, mail_head_value); // 設置郵件標題
   message.setSentDate(new Date()); // 設置郵件發送日期
   Address address = new InternetAddress(mail_from, personalName);
   message.setFrom(address); // 設置郵件發送者的地址
   Address toAddress = new InternetAddress(mail_to); // 設置郵件接收方的地址
   message.addRecipient(Message.RecipientType.TO, toAddress);
   Transport.send(message); // 發送郵件
   System.out.println("send ok!");
  } catch (Exception ex) {
   ex.printStackTrace();
   throw new SendMailException(ex.getMessage());
  }
 }

 /**
  * 用來進行服務器對用戶的認證
  */
 public class Email_Autherticator extends Authenticator {
  public Email_Autherticator() {
   super();
  }

  public Email_Autherticator(String user, String pwd) {
   super();
   username = user;
   password = pwd;
  }

  public PasswordAuthentication getPasswordAuthentication() {
   return new PasswordAuthentication(username, password);
  }
 }

 public static void main(String[] args) {
  sendmail sendmail = new sendmail();
   try {
   sendmail.send();       
   }
   catch (Exception  ex) {
   }
 }

}